projective property

projective property
a geometric property that is unaltered by projection; a property of relative position, as coincidence or length, but not of magnitude.
[1880-85]

* * *


Universalium. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • projective property — a geometric property that is unaltered by projection; a property of relative position, as coincidence or length, but not of magnitude. [1880 85] …   Useful english dictionary

  • projective property — /prədʒɛktɪv ˈprɒpəti/ (say pruhjektiv propuhtee) noun a geometric property which is unaltered by projection …  

  • Projective geometry — is a non metrical form of geometry, notable for its principle of duality. Projective geometry grew out of the principles of perspective art established during the Renaissance period, and was first systematically developed by Desargues in the 17th …   Wikipedia

  • Projective module — In mathematics, particularly in abstract algebra and homological algebra, the concept of projective module over a ring R is a more flexible generalisation of the idea of a free module (that is, a module with basis vectors). Various equivalent… …   Wikipedia

  • projective geometry — the geometric study of projective properties. [1880 85] * * * Branch of mathematics that deals with the relationships between geometric figures and the images (mappings) of them that result from projection. Examples of projections include motion… …   Universalium

  • Projective vector field — A projective vector field (projective) is a smooth vector field on a semi Riemannian manifold (p.ex. spacetime) M whose flow preserves the geodesic structure of M without necessarily preserving the affine parameter of any geodesic. More… …   Wikipedia

  • Projective cover — In category theory, a projective cover of an object X is in a sense the best approximation of X by a projective object P . Projective covers are the dual of injective envelopes. Definition Let mathcal{C} be a category and X an object in… …   Wikipedia

  • Property of Baire — A subset A of a topological space X has the property of Baire (Baire property) if it differs from an open set by a meager set; that is, if there is an open: Usubseteq Xsuch that: ADelta Uis meager (here, Delta; denotes the symmetric… …   Wikipedia

  • Projective harmonic conjugates — is defined by the following harmonic construction::“Given three collinear points A, B, C, let L be a point not lying on their join and let any line through C met LA, LB at M, N respectively. If AN and BM met at K , and LK meets AB at D , then D… …   Wikipedia

  • projective — adj. 1 Geom. a relating to or derived by projection. b (of a property of a figure) unchanged by projection. 2 Psychol. mentally projecting or projected (a projective imagination). Phrases and idioms: projective geometry the study of the… …   Useful english dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”